Mary try to cover up her mistake by lying to the Boss.

玛丽试图通过向老板撒谎来掩盖她的错误。

youdao

Liars sometimes try to cover up their deed with excessive adjective use.

撒谎者有时候试图用过多的形容词掩盖他们的谎言。

youdao

Naturally his wife will try to cover up for him, so we can't believe everything she says.

他妻子当然会竭力为他掩饰，所以对她讲的话我们不能全都相信。

youdao

They try to cover up weak writing and weak scripts with special effects, but nobody goes to movies for just special effects.

FORBES: Lies, Damned Lies and Piracy

And I think what we have is an implicit acknowledgement that impeaching the president because he admittedly lied to try to cover up a private, consensual, sexual affair is a mistake.

CNN: Transcript: Opening statement of Rep. Frank

Unfortunately when pensions make costly mistakes, most try to cover them up.

FORBES: Consultant Refuses to Disclose Manager Brokerage to Pension - Asserts Duty to Protect Confidentiality of Its Brokerage Clients! (November 1, 2001)